Question

Name two viral diseases of chickens

Answer 1

1. Avian adenovirus splenomegaly and

2.Infectious bursal disease

  Avian adenovirus splenomegaly is characterized by the enlargement of the spleen, pulmonary oedema and congestion.

It is mostly observed in broiler breeders at the age of 20-45 weeks.

Its course is peracute or acute.

The mortality could reach 8 - 9%.

The most typical lesions are splenomegaly, mottled or marble-like appearance of the spleen, oedema or hyperaemia of lungs. infectious bursal disease (gumboro)is an acute, highly contagious viral infection in chickens manifested by inflammation and subsequent atrophy of the bursa of Fabricius, various degrees of nephroso-nephritis and immunoimmune-suppression.

Clinically, the disease is seen only in chickens older than 3 weeks.

The feathers around the vent are usually stained with faeces containing plenty of urates.

Answer 2

Flue and Fowl pox are two viral diseases of chickens.